Walnut
(USA)
1 - Extra light
No more than 15% shall be darker than extra light of which only 2% (included in the 15%) may be darker than light.
2 - Light
No more than 15% shall be darker than light of which only 2% (included in the 15%) may be darker than light amber.
3 - Light amber
No more than 15% shall be darker than light amber of which only 2% (included in the 15%) may be darker than amber
4 - Amber
No more than 10% shall be darker than amber.
| PARAMETER | HALVES | LARGE PIECES | SMALL PIECES |
|---|---|---|---|
| Tolerance for grades defects | |||
| Total defects (%) | 8,00 | 8,00 | 8,00 |
| Serious damage (%) | 4,00 | 4,00 | 4,00 |
| Very serious damage (%) | 2,00 | 2,00 | 2,00 |
| Shell and foreign material (%) | 0,05 | 0,05 | 0,05 |
| Size classification | |||
| 3/4 & Halves kernels (%) | X | N/A | N/A |
| Not passing through 24/64” (%) | N/A | N/A | 10,00 |
| Passing through 24/64” (%) | 18,00 | 25,00 | N/A |
| Passing through 16/64” (%) | 3,00 | 5,00 | N/A |
| Not passing through 8/64” (%) | 1,00 | 1,00 | 2,00 |
Description: 7/8 or more of the kernel is intact, 85% or more of lot, by weight, are half kernels with the remainder three-fourths half kernels.
USDA Size Tolerances: No more than 5% smaller than three-fourths halves of which no more than 1% may pass through 16/64 inch (6,35 mm) round screen hole.
Description: 20% or more of lot, by weight, are half kernels(7/8 or more of the kernel is intact).
USDA Size Tolerances: No more than 18% small pass more than 3% may pass through 16/64 inch (6,35 mm) and of 3% no more than 1% may pass through 8/64 inch (3,18 mm) round screen hole.
Description: Portions of kernels in lot cannot pass through 24/64 inch (9,53 mm) round openings.
USDA Size Tolerances: No more than 25% shall pass trhough 24/64 inch (9,53 mm) round hole of which no more than 5 % may pass trough 16/64 inch (6,35 mm) and of 5% no more than 1% may pass through 8/64 inch (3,18 mm) round hole included in the 5 %.
Description: Portions of kernels in lot pass through 24/64 inch (9,53 mm) round openings but can not pass trough 8/64 inch (3,18 mm) round openings.
USDA Size Tolerances: 10% will not pass trhough 24/64 inch (9,53 mm) round hole and 2 % pass trough 8/64 inch (3,18 mm) round hole.
WALNUT
(USA)
| PARAMETER | US Nº. 1 | US Nº. 2 |
|---|---|---|
| External defects | ||
| Total defects (%) | 5,00 | 10,00 |
| Serious damage (%) | 3,00 | 5,00 |
| Splits (%) | 10,00 | 10,00 |
| Kernel defects | ||
| Insect damage (%) | 5,00 | 5,00 |
| Insect, mold and serious damage (%) | 6,00 | 8,00 |
| Total kernel defects (%) | 10,00 | 15,00 |
| Kernel color grade | ||
| Light amber (%) | 70,00 | 60,00 |
| Light included in light amber (%) | 40,00 | N/A |
| Undersized (%) | 12 | 12 |
The Chandler walnut is large, smooth and oval shaped with a good shell seal. Chandlers are known around the world and are highly prized by buyers for their extra light and high quality kernels. Harvested mid to late season, Chandlers provide one of the highest kernel yields of any of the varieties.
This “classic walnut” is the principal variety marketed inshell. Hartleys are harvested mid-late season. The thin-shelled, well-sealed nut is esay to crack and continues to be the best inshell walnut variety for customers who require an artifically bleached shell.
The Tulare walnut is an increasingly popular inshell variety known for its high yield. Named after a county in California´s Central Valley, Tulares are harvested midseason and continue to be a significant contributor to the state´s walnut production.
This walnut is unique in that it closely resembles the highly regarded Sorrento Italian variety. The nut is unusual in shape as it is pointed at both ends. It is generally considered to be one of the sweetest-tasting varieties cultivated in California, and is highly prized by culinary experts for its flavor.
The Payne walnut is one of the older varieties. Usually the first to be harvested, payne walnuts are small to medium size and have a very good shell seal. Many of today´s walnuts have the Payne variety in their background.
The Vina walnut is an early to mid-season variety. Vinas are a cross between Franquette and Payne walnuts. The nut is medium to large in size, pointed, and looks similar to hartley but is less flat on the base. Color is a good quality and high yield.
WALNUT
(China)
| VARIETY | SIZE | TYPE |
|---|---|---|
| 185 | 30+ mm | Washed |
| Xin2 | 32+ mm | Non-Washed |
| Yunnan | - | - |
IN SHELL
| VARIETY | 185 | XIN 2 | YUNNAN |
|---|---|---|---|
| Avaliable sizes | 30 mm + | 30 mm + | 30 mm + |
| Kernel rate | 60-65% | 50-55% | 50-55% |
| Walnut quantity per kg | 70 piece app. | 80 piece app. | 80 piece app. |
| Walnut weight per piece | 15 gr. app. | 12 gr. app. | 13 gr. app. |
| Shell thickness | Thinnest | Thicker than 185 | Same than Xin2 |
| Production area | Xinjiang | Xinjiang | Yunnan |
| Notes | Similar to Californian Tulare variety | Similar to Californian Chandler variety | More oily and bitter taste |
WALNUT
(Chile)
| VARIETY | SIZE |
|---|---|
| Amigo | < 28 mm |
| Chandler | 28/30 mm |
| Chico | 30/32 mm |
| Franquette | 32/34 mm |
| Hartley | 34/36 mm |
| Howard | 36 + mm |
| Serr | - |
| Sunland | - |
